ERuby speed issues

ruby-talk
1

The below code is being run on an Apache webserver with ModRuby 0.97. (I
have also tried running it straight CGI, versus ModRuby.) Despite the
numbers from the Ruby profiler (which are below the code), this particular
page loads in no less than 8 seconds and up to 1 minute. This is when I go
to the page the first time, not even when I submit the form.

<%
require ‘cgi’
require ‘digest/md5’
require ‘iblp/iblp_login/loginsession.rb’
include LoginManager

session = LoginSession.new
cgi = CGI.new

if session.valid_session? then # This checks a cookie value
error_message = “You are now logged in.”
logged_in = true
else
error_message = “Please log in below.”

if ENV.include?("HTTPS") then
	if ENV["REQUEST_METHOD"] == "POST" then
		require "iblp/iblp_login/entity/login"

		login_broker =

Entity::LoginBroker.new(Storage::ConnectionBroker.new)
login =
login_broker.fetch_login(cgi.params[“username”].to_s,
cgi.params[“password”].to_s)

		if login.trusted?
			if session.new_session(login.entity_id) then
				if cgi.cookies.include?("referer")

then
cgi.header(“Location” =>
cgi.cookies[“referer”].value.to_s)
end

				logged_in = true
				error_message = "You are now logged

in."
else
error_message = “Session could not
be created.”
end
else
error_message = “Invalid username or
password. Please try again.”
end
end
else
session.set_secure(“https://bob.iblp.net”) # This does a CGI
header redirect
end
end

%>

Login <% ERuby.import "include/header.rhtml" %>

<% ERuby.import “include/footer.rhtml” %>

% cumulative self self total
time seconds seconds calls ms/call ms/call name
53.95 0.41 0.41 10 41.00 108.00 Kernel.require
32.89 0.66 0.25 2 125.00 520.00 Class#new
15.79 0.78 0.12 8 15.00 28.75 Array#each
5.26 0.82 0.04 171 0.23 0.23 Module#method_added
5.26 0.86 0.04 28 1.43 1.43 String#downcase
3.95 0.89 0.03 64 0.47 0.47 Fixnum#to_s
2.63 0.91 0.02 45 0.44 0.44
Kernel.singleton_method_added
2.63 0.93 0.02 16 1.25 1.88 Module#module_eval
1.32 0.94 0.01 6 1.67 26.67 Date#once
1.32 0.95 0.01 1 10.00 10.00 Module#include
1.32 0.96 0.01 22 0.45 0.45 Module#private
1.32 0.97 0.01 28 0.36 0.36 Kernel.eval
1.32 0.98 0.01 1 10.00 10.00 IO#print
1.32 0.99 0.01 1 10.00 10.00 Kernel.extend
1.32 1.00 0.01 1 10.00 10.00 Regexp#match
0.00 1.00 0.00 1 0.00 30.00
CGI::QueryExtension.initialize_query
0.00 1.00 0.00 1 0.00 40.00 CGI#initialize
0.00 1.00 0.00 2 0.00 0.00 ENV.
0.00 1.00 0.00 1 0.00 0.00 Kernel.at_exit
0.00 1.00 0.00 28 0.00 0.00 String#sub
0.00 1.00 0.00 1 0.00 0.00 IO#write
0.00 1.00 0.00 3 0.00 0.00 String#===
0.00 1.00 0.00 2 0.00 0.00 Module#append_features
0.00 1.00 0.00 1 0.00 0.00 Module#extend_object
0.00 1.00 0.00 1 0.00 0.00 Module#attr_reader
0.00 1.00 0.00 9 0.00 0.00 Class#inherited
0.00 1.00 0.00 1 0.00 0.00 String#<=>
0.00 1.00 0.00 1 0.00 30.00
CGI::QueryExtension.read_from_cmdline
0.00 1.00 0.00 1 0.00 0.00
Exception#set_backtrace
0.00 1.00 0.00 32 0.00 0.00 Symbol#id2name
0.00 1.00 0.00 1 0.00 40.00
LoginManager::LoginSession#initialize
0.00 1.00 0.00 64 0.00 0.00 Symbol#to_i
0.00 1.00 0.00 1 0.00 0.00 Module#attr
0.00 1.00 0.00 1 0.00 0.00 Kernel.readlines
0.00 1.00 0.00 1 0.00 0.00 Array#+
0.00 1.00 0.00 1 0.00 0.00 main.include
0.00 1.00 0.00 1 0.00 0.00 IO#tty?
0.00 1.00 0.00 23 0.00 0.00 Module#alias_method
0.00 1.00 0.00 2 0.00 0.00 CGI#env_table
0.00 1.00 0.00 1 0.00 0.00 String#+
0.00 1.00 0.00 2 0.00 5.00 Module#attr_accessor
0.00 1.00 0.00 1 0.00 0.00 Comparable.<
0.00 1.00 0.00 1 0.00 0.00 Module#module_function
0.00 1.00 0.00 1 0.00 760.00 #toplevel
0.00 1.00 0.00 2 0.00 0.00 String#==
0.00 1.00 0.00 2 0.00 0.00 Exception#backtrace
0.00 1.00 0.00 1 0.00 0.00 Array#empty?

We have been running eruby for a couple of months now, and have found that
it is extremely slow, taking up to a minute to load a simple page.

Having run the ruby profiler, I have found that the two things that take
the longest time are: #toplevel and Kernel.require.

Being relatively new to Ruby, I am wanting to confirm what #toplevel is.
If
I understand correctly, #toplevel is just any code that runs without being
in a class, method, or other type of “container”, if you will.

I am also wondering about the Kernel.require speed; is that just because
it
is accessing the file system? It looks like eruby.import commands take
about as long.

Thanks for your help.

Peter Pallock

Up to a minute? That seems a little excessive for a simple page; I ran
eRuby
for well over a year w/out any similar problems (I currently recoding in
amrita). Can you post some example code with timing?

~ Bruce

···

-----Original Message-----
On Tuesday 22 October 2002 12:58 pm, Peter Pallock wrote: